有关以色列灌溉农业的叙述，正确的是[ ]

A．农业灌溉的水源主要来自南部地区  

B．农业灌溉的水源主要来自东部的死海  

C．大力发展了滴灌和喷灌技术，有效地利用水资源  

D．以色列主要出口稻米

— I called you last night but no one answered the phone. 　　   

— I ______ dinner with my friends in the restaurant. [ ]

A. have

B. had

C. was having

D. have had